184679-29-6 2,19-Dioxa-10,27-diazapentacyclo(28.2.2.220,23.13,7.114,18)octatriaconta-3,5,7(38),14,16,18(37),20,22,30,32,33,35-dodecaene-11,12,25,26-tetrone, 5,16,21,32-tetrabromo-4,17-dihydroxy-, 12,25-dioxime Bastadin 20